VC-M331HM (serv.man4). Electrical adjustment, mechanism operation flowchart and troubleshooting guide - Sharp VCR Service Manual (repair manual). Page 9

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36
VC-M321HM
VC-M331HM
YES
YES
NO
NO
NO
NO
YES
YES
Replace capstan motor.
4-ii) Unusual sound in FF/REW mode
Is reel disk height as specified ?
Thrust gap found at reel disk ?
part on main PWB ?
Turn capstan motor by hand.
Unusual sound heard ?
’s gears for
damage. Replace damaged gear
with new one.
• Reel disk
• Limiter pulley ass
’y
• Idler wheel ass
’y
Check reel disk and main chassis.
And replace defective parts.
Adjust reel disk height.
Rearrange the parts on main PWB.

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VC-M331HM (serv.man4) Service Manuals

Download	Pages	Size
VC-M331HM (serv.man2) Disassembly and reassembly, function of major mechanical parts Service Manual	5	266.48 KB
VC-M331HM (serv.man3) Adjustment, replacement and assembly of mechanical units Service Manual	19	431.51 KB
VC-M331HM (serv.man5) Electrical troubleshooting Service Manual	14	67.26 KB
VC-M331HM (serv.man6) Block diagram Service Manual	5	1.34 MB
VC-M331HM (serv.man7) Schematic diagram Service Manual	6	1.92 MB
VC-M331HM (serv.man8) PWB foil pattern Service Manual	2	928.17 KB
VC-M331HM (serv.man10) Exploded view of mechanical parts and packaging of set Parts Guide	7	333.89 KB
VC-M331HM (serv.man9) Replacement parts list Parts Guide	13	39.65 KB
VC-M331HM Contents, precautions and specifications Specification	3	18.26 KB
VC-M331HM (serv.man11) Change to loading motor drive IC (IC702). Technical Bulletin	1	72.81 KB
VC-M331HM (serv.man12) Countermeasure for permanent erase or loss of the linear audio track in either the record or playback modes. Technical Bulletin	2	187.72 KB
VC-M331HM (serv.man13) Countermeasure to VCR automatically starting up from standby. (Addition to VCR991101) Technical Bulletin	1	12.91 KB
VC-M331HM (serv.man14) Counter measures for automatic start up (intermittent tape rewinding) Technical Bulletin	1	163.88 KB
VC-M331HM (serv.man15) Counter measure for PDC programming problems Technical Bulletin	1	20.42 KB
VC-M331HM (serv.man16) Change of video head drum part numbers Technical Bulletin	1	8.01 KB
VC-M331HM (serv.man17) Counter measure for intermittent fast forward and or rewind operation Technical Bulletin	1	7.12 KB
VC-M331HM (serv.man18) Packaging Weights Data Regulatory Data	1	4.35 KB

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